Agus, MarcoGobbetti, EnricoIglesias-Guitian, Jose A.Marton, FabioPintore, Giovanni2025-05-082025-05-082008-04-24M. Agus, E. Gobbetti, J. A. I. Guitiàn, F. Marton, y G. Pintore, «GPU Accelerated Direct Volume Rendering on an Interactive Light Field Display», Computer Graphics Forum, vol. 27, n.o 2, pp. 231-240, abr. 2008, doi: 10.1111/j.1467-8659.2008.01120.x0167-70551467-8659http://hdl.handle.net/2183/41938This is the peer reviewed version of the article, which has been published in final form at Computer Graphics Forum. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited[Abstract]: We present a GPU accelerated volume ray casting system interactively driving a multi-user light field display. The display, driven by a single programmable GPU, is based on a specially arranged array of projectors and a holographic screen and provides full horizontal parallax. The characteristics of the display are exploited to develop a specialized volume rendering technique able to provide multiple freely moving naked-eye viewers the illusion of seeing and manipulating virtual volumetric objects floating in the display workspace. In our approach, a GPU ray-caster follows rays generated by a multiple-center-of-projection technique while sampling pre-filtered versions of the dataset at resolutions that match the varying spatial accuracy of the display. The method achieves interactive performance and provides rapid visual understanding of complex volumetric data sets even when using depth oblivious compositing techniqueseng© 2008 The Author(s) Journal compilation © 2008 The Eurographics Association and Blackwell Publishing Ltd. Published by Blackwell Publishing, 9600 Garsington Road, Oxford OX4 2DQ, UK and350 Main Street, Malden, MA 02148, USAIn-put/Output Devices Image DisplayPicture/Image generationThree-dimensional graphics and realismjournal articleopen access